The Big Bang Theory

Thursdays 8:00 PM on CBS
The big bang theory
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Watch The Big Bang Theory Season 5 Episode 18 online via TV Fanatic with over 5 options to watch the The Big Bang Theory S5E18 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, and Google Play.

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Episode Details

Sheldon's barber gets sick this week, while astronaut training causes Wolowitz to rethink his decision to head into space.


Rating: 4.4 / 5.0 (120 Votes)
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Episode Number:
18

The Big Bang Theory Season 5 Episode 18 Quotes

Penny: I use to cut my brother's hair. I could do it for you
Sheldon: I know you mean well, offering the skills of the hill folk, but here in town we don't churn our own butter, we don't make dresses from gunny sacks, and sure-as-shootin don't get our hair cut by bottle blon..
Leonard: Sheldon be nice!

To paraphrase T.S. Elliot, this is how the world ends, not with a bang but with a nephew.

Sheldon